package fileutils
import (
"os"
)
// UpdateFile appends a byte slice to a file
func UpdateFile(filename string, data []byte) error {
f, err := os.OpenFile(filename, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
dataWNewline := append(data, []byte("\n")...)
_, err = f.Write(dataWNewline)
err = f.Close()
return err
}